Hertel 84579085 Jobber Drill Bit 7/64 Inch Hss Oxide

Product Description

The HERTEL 84579085 is a 7/64 inch high speed steel jobber-length drill bit designed for general-purpose holemaking in metal, wood, and composite materials. It features a 135-degree split point that reduces walking and requires no center punch on most surfaces. The oxide coating provides basic corrosion resistance and helps reduce friction during cutting. At 2-5/8 inches overall length with a 1-1/2 inch flute length, it fits standard three-jaw chucks and drill press spindles without modification. This bit is a heavy-duty grade tool suited for production shop use, maintenance repair, and fabrication work performed by machinists, pipefitters, electricians, and general tradespeople.

This drill bit is intended for right-hand rotation holemaking applications in light to medium-duty production and maintenance environments. The straight cylindrical shank accepts any standard drill chuck. The regular spiral flute geometry and tapered web configuration with web thinning improve chip evacuation and reduce thrust load, making it well suited for hand drills, drill presses, and CNC drill stations running smaller diameter holes in ferrous and non-ferrous stock.

Key Features

• 135-degree split point reduces drill walk and lowers entry thrust
• High speed steel construction rated for heavy-duty grade service
• Oxide finish provides corrosion resistance and reduced friction
• Web-thinned tapered web improves chip flow and reduces heat buildup
• Two-flute regular spiral geometry for efficient chip evacuation
• Straight cylindrical shank compatible with standard drill chucks

Compatibility

Designed as a standard jobber-length replacement drill bit for use in hand drills, drill presses, and CNC drilling equipment accepting a 7/64 inch straight cylindrical shank. Conforms to NAS specification designation for jobber drill geometry.

Installation Notes

Installation is performed by machinists, maintenance technicians, and trade professionals using standard drill chucks. Ensure the drill bit is fully seated and the chuck is tightened before operation. Inspect the cutting edges for chips or wear before each use, as damaged edges increase heat and reduce hole quality. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend tool life and maintain dimensional accuracy.